16GB Digital Voice Recorder Voice Activated Recorder for Lectures Meetings Audio Recorder with Noise Reduction Recording Device External Microphone and Line in Recording A-B Repeat MP3 Speaker

Specification: -High Quality:PCM 1536kpbs recording DSP chip,Intelligent noise reduction. -External Speaker:Double magnetic speaker. -USB interface: Micro USB 2.0 (compatible with USB 3.0; charge or transfer files from computer or tellphone). -Recording format: MP3/WAV. - Dual Microphone capture stereo recording. - voice activated recording：to save recording time and space, catch the main point. - External MIC or line in Recording(note:need to buy extra TRS 3.5mm out port cable to use this function). - A-B Repeat & Variable Playback Speed. - Recorder with password to protect your privacy. Battery Informations: -Battery: built-in 3.7V/400mAh rechargeable lithium battery. -Recording time: can continuously record for up to 30 hours after fully charged,It takes 3 hours to fully charge. -Power input: 5V, 300mAh-500mAh. -Playback time: Headphones (up to 25 hours)/speaker(up to 10 hours)